Absence of a polar phase in perovskite chromite RCrO3 (R=La and Pr)

Kenji Yoshii; Naoshi Ikeda; Yutaka Shimojo; Yoshinobu Ishii

doi:10.1016/j.matchemphys.2016.12.074

Absence of a polar phase in perovskite chromite RCrO₃ (R=La and Pr)

Kenji Yoshii, Naoshi Ikeda, Yutaka Shimojo, Yoshinobu Ishii

Research output: Contribution to journal › Article

11 Citations (Scopus)

Abstract

Magnetic and dielectric properties have been studied for LaCrO₃, PrCrO₃, and their solid solution La_0.5Pr_0.5CrO₃, which belong to a family of the ferroelectric orthochromite series RCrO₃ (R: rare earths). The magnetic measurements confirm that the materials show canted antiferromagnetic ordering at 240–288 K. Neutron diffraction patterns could be fitted with the centrosymmetric Pnma, which is different from the non-centrosymmetric structure proposed for the ferroelectric phase of NdCrO₃. The large dielectric constants are likely due to the hopping of charge carriers as proposed previously for other chromites.

Original language	English
Pages (from-to)	96-101
Number of pages	6
Journal	Materials Chemistry and Physics
Volume	190
DOIs	https://doi.org/10.1016/j.matchemphys.2016.12.074
Publication status	Published - Apr 1 2017

Keywords

Chromite
Ferroelectricity
Magnetism
Perovskite

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics

Access to Document

10.1016/j.matchemphys.2016.12.074

Fingerprint Dive into the research topics of 'Absence of a polar phase in perovskite chromite RCrO<sub>3</sub> (R=La and Pr)'. Together they form a unique fingerprint.

Cite this

@article{682d7e9547554be68e705e539a49d4a6,

title = "Absence of a polar phase in perovskite chromite RCrO3 (R=La and Pr)",

abstract = "Magnetic and dielectric properties have been studied for LaCrO3, PrCrO3, and their solid solution La0.5Pr0.5CrO3, which belong to a family of the ferroelectric orthochromite series RCrO3 (R: rare earths). The magnetic measurements confirm that the materials show canted antiferromagnetic ordering at 240–288 K. Neutron diffraction patterns could be fitted with the centrosymmetric Pnma, which is different from the non-centrosymmetric structure proposed for the ferroelectric phase of NdCrO3. The large dielectric constants are likely due to the hopping of charge carriers as proposed previously for other chromites.",

keywords = "Chromite, Ferroelectricity, Magnetism, Perovskite",

author = "Kenji Yoshii and Naoshi Ikeda and Yutaka Shimojo and Yoshinobu Ishii",

year = "2017",

month = apr,

day = "1",

doi = "10.1016/j.matchemphys.2016.12.074",

language = "English",

volume = "190",

pages = "96--101",

journal = "Materials Chemistry and Physics",

issn = "0254-0584",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Absence of a polar phase in perovskite chromite RCrO3 (R=La and Pr)

AU - Yoshii, Kenji

AU - Ikeda, Naoshi

AU - Shimojo, Yutaka

AU - Ishii, Yoshinobu

PY - 2017/4/1

Y1 - 2017/4/1

N2 - Magnetic and dielectric properties have been studied for LaCrO3, PrCrO3, and their solid solution La0.5Pr0.5CrO3, which belong to a family of the ferroelectric orthochromite series RCrO3 (R: rare earths). The magnetic measurements confirm that the materials show canted antiferromagnetic ordering at 240–288 K. Neutron diffraction patterns could be fitted with the centrosymmetric Pnma, which is different from the non-centrosymmetric structure proposed for the ferroelectric phase of NdCrO3. The large dielectric constants are likely due to the hopping of charge carriers as proposed previously for other chromites.

AB - Magnetic and dielectric properties have been studied for LaCrO3, PrCrO3, and their solid solution La0.5Pr0.5CrO3, which belong to a family of the ferroelectric orthochromite series RCrO3 (R: rare earths). The magnetic measurements confirm that the materials show canted antiferromagnetic ordering at 240–288 K. Neutron diffraction patterns could be fitted with the centrosymmetric Pnma, which is different from the non-centrosymmetric structure proposed for the ferroelectric phase of NdCrO3. The large dielectric constants are likely due to the hopping of charge carriers as proposed previously for other chromites.

KW - Chromite

KW - Ferroelectricity

KW - Magnetism

KW - Perovskite

UR - http://www.scopus.com/inward/record.url?scp=85011664434&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85011664434&partnerID=8YFLogxK

U2 - 10.1016/j.matchemphys.2016.12.074

DO - 10.1016/j.matchemphys.2016.12.074

M3 - Article

AN - SCOPUS:85011664434

VL - 190

SP - 96

EP - 101

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

SN - 0254-0584

ER -